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#include "imagemodel.h"

ImageModel::ImageModel(QObject *parent) :
    FeatureModel(parent)
{

}

bool ImageModel::openImage(const QString &fileName, QImage *image)
{
    return image->load(fileName);
}

GrayscaleImage ImageModel::convertImage(QImage &image)
{
    GrayscaleImage convertedImage(image.size());
    QSize size = image.size();
    for( int row = 0; row < size.height(); row++ ) {
        for ( int col = 0; col < size.width(); col++ ) {
            QRgb pixel = image.pixel(col, row);
            Grayscale gray = qGray(pixel);
            convertedImage.setGrayscale(col, row, gray);
        }
    }
    return convertedImage;
}

bool ImageModel::setImage(int row, int col, QImage image, QStandardItemModel *model)
{
    QVariant variant = qVariantFromValue(image);
    return setFeature(row, col, variant);
}

QImage ImageModel::image(int row, int col, QStandardItemModel *model)
{
    QVariant variant = feature(row, col);
    if (variant.isValid()) {
        return variant.value<QImage>();
    }
    else {
        return QImage();
    }
}
